Bought a 22 Syn Mrod a couple of weeks ago. Very accurate with cheap pointed 17.1 gr pellets. After 20 shots topped back up to 3,000 PSI around 9:00 PM. Next morning it had leaked down to 2,000 PSI. Returned to Airgun Depot for refund and ordered a Mrod F&T to replace the leaker. 30 shots took...